We stayed in the Tower Club in Jan.
Do not forget to request a fridge in your room. It's free, but you need to ask for it.
If you have children, the TC is great for the breakfast and snacks. Also, bottled water is free if you ask. My wife was five months pregnant, and we were given a 12 pack of bottled water to start us off. I am not sure that they give that much water to everyone, but always ask for what you might need.
If viewing the MK is a priority, be sure to request a MK view room. We did and we were able to see gorgeous sunsets and watch the fireworks every night from the balcony. Also, lying in bed and watching the castle change colors was pure MAGIC! However, the view from the other side is frequently more desirable for folks (you don't have to see the parking lot, but from the 12th floor, you practically need to look down to see it anyway)
The concierge staff was OK, and by that I mean they didn't really do anything more than what I could have done by picking up the phone. Pleasant enough, but nothing special. Perhaps others have better reports on the staff.
Overall, the TC was worth it with the AP discount. I am not sure I would pay rack rate for a room there.
Enjoy, I am looking forward to my next trip to the CR Tower!